Athan: When are we, exactly?Cole: December 26th, 1959, right after I undid our lives here.Cassie: This would have been your home.Athan: Chased through time by sentimentalists. Cole: Sit down, you little shit.

You're too late. What's done cannot be undone. I feel nothing for you. There is nothing in morality or causality that can stop me from killing you. Go live your lives, what little you have left of them.